PMC:4129400 / 17914-18474 JSONTXT

{"project":"2_test","denotations":[{"id":"25087611-22346769-2046330","span":{"begin":185,"end":187},"obj":"22346769"},{"id":"25087611-19043577-2046331","span":{"begin":250,"end":252},"obj":"19043577"}],"text":"We quantified the EBV copy number in all LCLs. EBV copy number was assessed with a Taqman Gene Expression Assay (Pa03453399_s1). Intrinsic growth rates for each cell line from Im et al.36 and baseline ATP and mitochondrial DNA levels from Choy et al.37 were also included in the analyses. To identify potential additional unobserved confounders, we applied surrogate variable analysis (SVA) to the matrix of 68 × 3 protein level measurements after including the effects of known nongenetic confounders to identify 16 additional significant surrogate variables."}